Driving power supply system of an active type LED with multiple channels

ABSTRACT

The present invention is to provide an active type multiple channeled LED power driving system, which is an operation system of driving power mainly designed for light source equipment using high power LED. The best system composition includes seven operation regions. The ordinary power is lead-in through a first region, and at first the regulating and filtering are proceeded by an EMC circuitry. Then, after it is lead-in a PWM circuitry to raise its power, the voltage transformation is processed through the second region. After it is further regulated and filtered to form the optimum power through the CC&amp;CV control circuitry in the third region, it proceeds multiple channeled splitting by the fourth region. And, the original DC (direct current) power output is modulated into the intermittent electric power capable of controlling the output frequency and width of period by intermittent modulating circuitry in the fifth region. It further is output to the LED lighting modules of the sixth region to proceed the light source activation operation. At the same time, there is an environment parameters&#39; sensor set in the seventh region to feedback the temperature coefficients of the LED lighting module to the CC&amp;CV control circuitry in the third region to proceed the adjustment and judgment in its curve of output voltage and current. Through this, it can achieve the active electronic typed heat dissipation and raise the energy efficiency thus let the LED lamp and lantern be able to achieve its maximum performance.

BACKGROUND OF THE INVENTION

In general, there are three kinds of output model in the driving powersupply systems of the ordinary LEDs (light emitted diode). One is CVMode (constant voltage mode), one is CC Mode (constant current mode) andthe last one is the CC&CV Mode (constant voltage/constant currentco-existing mode). However, the above power driving methods are not ableto work out an active control of the best point in the working voltageand current. And, due to the variation in the climate temperature or anill design in the heat dissipation of the LED lamp and lantern, it iseasy to cause an adverse condition of over heat in the LED while beingunable to control the environmental temperature, such that the lightingbrightness and energy efficiency will be decreased and even cause asituation of burn out in the LED lighting module. FIG. 1 is a drivingpower system diagram of LED adopting CC&CV Mode (constantvoltage/constant current co-existing mode) in the prior art. It ismainly including four operation regions. The power is lead-in throughthe first region 10, and the regulating and filtering is proceeded by anEMC circuitry 11 (electromagnetic compatible circuitry). Then, after itis adjusted by a PWM circuitry 13 (phase width modulator) to raise itspower (the working efficiency of its power supply can be raised up toover 80%), the voltage transformation is processed by a transformer 21in the second region 20. It is then regulated and filtered to form theoptimum power through the CC&CV control circuitry 31 in the third region30 and output to a lighting module 61 in the last region 60. As seenhere, the said driving power system is a design which is totally unableto actively sense the ambient temperature to make proper adjustment thenoutput. Therefore, it is easy to cause an adverse condition of over heatin the LED such that the lighting brightness and energy efficiency willbe decreased and even cause a situation of burn out in the LED lightingmodule. Thus, it needs to be improved.

SUMMARY OF THE INVENTION

The present invention is related to a kind of innovative design of anintegrated operation system in the driving circuit of the lamp andlantern using LED as its lamp power, and is especially designed for ahigh powered LED's lamp and lantern. Its object is that the electronictyped heat dissipation rate and energy efficiency can be further raisedunder the system operation to let the LED lamp and lantern be able toachieve its maximum performance. The characteristics and effects of thepresent invention are now described hereafter in cooperation with thedrawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a driving power system diagram of LED adopting CC&CV Mode(constant voltage/constant current co-existing mode) in the prior art.

FIG. 2 is a driving power system diagram of an active type LED withmultiple channels in the present invention.

FIG. 3 is a second embodiment diagram of the present invention.

FIG. 4 is a third embodiment diagram of the present invention.

FIG. 5 is a fourth embodiment diagram of the present invention.

FIG. 6 is a fifth embodiment diagram of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention is to provide an active type multiple channeledLED power driving system, which is mainly designed for light sourceequipment using high power LED. It includes seven operation regions asshown in FIG. 2. The ordinary power is lead-in through a first region10, and at first the regulating is proceeded by an EMC circuitry 11(electromagnetic compatible circuitry), then the filtering is judged bythe SW 12 (automatic controlled selector). The voltage and current withinsufficient performance is lead-in a PWM circuitry 13 (phase widthmodulator) to raise its power (the working efficiency of its powersupply can be raised up to over 80%). The voltage transformation isprocessed through a transformer 21 in the second region 20. After it isfurther regulated and filtered to form the optimum power through theCC&CV (constant voltage/constant current) control circuitry 31 in athird region 30, and it proceeds equal ratio performance splitting inthe multiple channels by outputers 41 with multiple channels in a fourthregion. The method is, for example, the lead-in current-voltage from thethird region is 10V, and is split into each 5V in two multiple channeledoutputers 41 of the fourth region 40. It then is lead-in the fifthregion 50 having the same numbers of intermittent modulating circuitry51 as multiple channeled outputers 41 such that the original DC (directcurrent) power output is modulated into the intermittent electric powercapable of controlling the output frequency and width of period. Itfurther is output to the sixth region 60 having the same numbers of LED(light emitting diode) lighting modules 61 as the intermittentmodulating circuitry 51 to proceed the light source activation. And,this kind of intermittent modulating method is one intermittentmodulating circuitry 51 in the fifth region 50 integrates and receiveseach 5V anode current voltage from two multiple channeled outputers 41of the fourth region 40 and forms a 10V then output to the sixth region60 for the provision of activation in one LED lighting module 61. Oneintermittent modulating circuitry 51 in the fifth region 50 integratesand receives each 5V cathode current voltage from two multiple channeledoutputers 41 of the fourth region 40 and forms a 10V then output to thesixth region 60 for the provision of activation in another LED lightingmodules 61. These two intermittent modulating circuitry 51 are notsimultaneously output and are not simultaneously activated two LEDlighting modules 61, but in an extremely spontaneous intermittentalternative way of output. Of course, the two LED lighting modules 61 inthe sixth region 60 uses also an extremely spontaneous intermittentalternative way to activate and emit the light source. This spontaneousintermittent alternative light source cannot be detected by vision.Therefore, those shown in the sixth region 60 are a kind of naturallight source. Furthermore, an environment parameters' sensor 71 of theseventh region 70 can sense the temperature changes in the whole systemand ambient, and feedback the temperature coefficients of the LEDlighting module 61 to the. CC&CV control circuitry 31 in the thirdregion 30 to proceed the adjustment and judgment in its curve of outputvoltage and current. Through this, it can achieve an active electronictyped heat dissipation and multiple channeled splitting output to raisethe energy efficiency thus let the LED lamp and lantern be able toachieve its maximum performance without the occurrence of an adversecondition of LED over heat which may decrease the LED lightingbrightness and energy efficiency, and even lead to the situation burnout in the LED lighting module.

Please refer to FIG. 3 that is a second embodiment of the presentinvention. It is characterized in that the LED power driving system canomit the fourth region 40 and outputers 41 with multiple channels. And,after the power is regulated and filtered to form the optimum powerdirectly through the CC&CV (constant voltage/constant current) controlcircuitry 31 in a third region 30, the original DC (direct current)power output is output and modulated into an intermittent electric powercapable of controlling the output frequency and width of period throughan intermittent modulating circuitry 51 in the fifth region 50. It isthen output to a sixth region 60 having the same numbers of LED (lightemitting diode) lighting modules 61 as the intermittent modulatingcircuitry 51 for proceeding a light source activation operation. And, anenvironment parameters' sensor 71 in a seventh region 70 is utilized tofeedback the temperature coefficients of the LED lighting module 61. Thecoefficients are provided to the CC&CV control circuitry 31 in the thirdregion 30 to proceed the adjustment and judgment of its curve of outputvoltage and current. Although this design is unable to use a multiplechanneled splitting output to raise the, energy efficiency, it also canachieve an active electronic typed heat dissipation to assure theutilization efficiency of the LED lamp and lantern.

Please refer to FIG. 4 that is a third embodiment of the presentinvention. It is characterized in that the LED power driving system canomit the fifth region 50 and multiple intermittent modulatingcircuitries 51. And, after the power is regulated and filtered to formthe optimum power directly through the CC&CV (constant voltage/constantcurrent co-existing mode circuitry) control circuitry 31 in a thirdregion 30, it is output to a sixth region 60 in a proportionalperformance splitting method by outputers 41 with multiple channels inthe fourth region 40 and directly provided to a lighting module 61 forproceeding a light source activation operation. And, an environmentparameters' sensor 71 in a seventh region 70 is utilized to feedback thetemperature coefficients of the LED lighting module 61. The coefficientsare provided to the CC&CV control circuitry 31 in the third region 30 toproceed the adjustment and judgment of its curve of output voltage andcurrent. Although this design is unable to use an integrated splittingmodulating method to raise the energy efficiency, it still can achievean active electronic typed heat dissipation to assure the utilizationefficiency of the LED lamp and lantern.

Please refer to FIG. 5 that is a fourth embodiment of the presentinvention. It is characterized in that the LED power driving system canomit the fourth region 40 and the fifth region 50. And, after the poweris regulated and filtered to form the optimum power directly through theCC&CV (constant voltage/constant current co-existing mode circuitry)control circuitry 31 in a third region 30, it is output to a sixthregion 60 and directly provided to a LED (light emitting diode) lightingmodule 61 for proceeding a light source activation operation. And, anenvironment parameters' sensor 71 in a seventh region 70 is utilized tofeedback the temperature coefficients of the LED lighting module 61. Thecoefficients are provided to the CC&CV control circuitry 31 in the thirdregion 30 to proceed the adjustment and judgment of its output voltageand current. Although this design is unable to use an integratedsplitting modulating method to raise the energy efficiency, it still canachieve an active electronic typed heat dissipation to assure theutilization efficiency of the LED lamp and lantern.

Please refer to FIG. 6 that is a fifth embodiment of the presentinvention which omits the environment parameters' sensor 71 in a seventhregion 70. That is, the aforementioned description is only explanatorybut not limited. The ordinary technicians in the present area canrealize that there are many modifications, variations or equivalents canbe done without leaving the spirit and range of the following claims,but these shall all be fallen in the protection range of the presentinvention.

1. An active type multiple channeled LED power driving system having anordinary power being lead-in through a first region with an EMCcircuitry and a PWM circuitry, passing through a second region with atransformer then entering a third region with CC&CV control circuitry;after further passing through a fourth region with several outputerswith multiple channels, lead-in a fifth region having the same numbersof intermittent modulating circuitry as the outputers, then output thepower to a sixth region having the same numbers of LED lighting modulesas the intermittent modulating circuitry, and set with environmentparameters' sensors in a seventh region.
 2. An active type multiplechanneled LED power driving system having an ordinary power beinglead-in through a first region with an EMC circuitry and a PWMcircuitry, passing through a second region with a transformer thenentering a third region with CC&CV control circuitry; further lead-in afifth region with intermittent modulating circuitry as the outputers,outputting right away to a sixth region having the same numbers of LEDlighting modules as the intermittent modulating circuitry, and settingwith environment parameters' sensors in a seventh region.
 3. An activetype multiple channeled LED power driving system having an ordinarypower being lead-in through a first region with an EMC circuitry and aPWM circuitry, passing through a second region with a transformer thenentering a third region with CC&CV control circuitry, further lead-in afourth region with multiple channeled outputers, outputting right awayto a sixth region with LED lighting modules, and setting withenvironment parameters' sensors in a seventh region.
 4. An active typemultiple channeled LED power driving system having an ordinary powerbeing lead-in through a first region with an EMC circuitry and a PWMcircuitry, passing through a second region with a transformer thenentering a third region with CC&CV control circuitry, then directlyoutputting right away to a sixth region with LED lighting modules, andsetting with environment parameters' sensors in a seventh region
 5. Anactive type multiple channeled LED power driving system having anordinary power being lead-in through a first region with an EMCcircuitry and a PWM circuitry, passing through a second region with atransformer then enter a third region with CC&CV control circuitry;further after passing through a fourth region with multiple channeledoutputers, lead-in a fifth region having the same numbers intermittentmodulating circuitry as the multiple channeled outputers, outputtingright away to a sixth region having the same numbers of LED lightingmodules as the intermittent modulating circuitry.